Annulation with and without co-insertion: striking a balance in reactivity of chromium carbene complexes with chalcogen-stabilized iron cluster appendage
DSpace at IIT Bombay
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Title |
Annulation with and without co-insertion: striking a balance in reactivity of chromium carbene complexes with chalcogen-stabilized iron cluster appendage
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Creator |
MATHUR, PRADEEP
GHOSH, SUNDARGOPAL SARKAR, AMITABHA RHEINGOLD, ARNOLD L GUZEI, ILIA A |
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Subject |
structural properties
spectroscopy crystallographic shear cluster analysis |
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Description |
Two new sets of products [(CO)6Fe2EE′{μ-indanone}] (2a: E, E′=Se; 2b: E=S, E′=Se) and [(CO)6Fe2EE′{μ-(2-ethoxy, α-naphthol)}] (3a: E, E′=Se; 3b: E=S, E′=Se; 3c: E=S, E′=Te) have been isolated from the thermolysis of the cluster-bound Fischer carbene complex, [(CO)6Fe2EE′{μ-C(Ph)=C–C(OEt)=Cr(CO)5}], 1a–c (1a: E, E′=Se; 1b: E=S, E′=Se; 1c: E=S, E′=Te) in THF. The products are formed by annulation pathway with and without the intermediacy of CO insertion step, from the same substrate. They have been characterized by IR and 1H, 13C, 77Se and 125Te NMR spectroscopy and the structural types were unequivocally established by crystallographic analysis of compounds 2a and 3c.
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Publisher |
Elsevier
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Date |
2009-03-09T07:41:17Z
2011-11-25T18:44:41Z 2011-12-26T13:06:55Z 2011-12-27T05:54:53Z 2009-03-09T07:41:17Z 2011-11-25T18:44:41Z 2011-12-26T13:06:55Z 2011-12-27T05:54:53Z 2000 |
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Type |
Article
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Identifier |
Tetrahedron 56(28), 4995-5000
0040-4020 http://dx.doi.org/10.1016/S0040-4020(00)00213-1 http://hdl.handle.net/10054/892 http://dspace.library.iitb.ac.in/xmlui/handle/10054/892 |
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Language |
en
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